Air Quality
Excellent
No health implications.
5
PM2.5
10
PM10
70
O3
0.5
CO
8
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 May
40
Excellent
Tue
19 May
43
Excellent
Wed
20 May
46
Excellent
Thu
21 May
49
Excellent
Fri
22 May
48
Excellent
Sat
23 May
43
Excellent
Sun
24 May
30
Excellent
Air quality in the last 12 months (Hezhang)
|
2026/04
|
36
|
35
|
31
|
33
|
44
|
45
|
38
|
43
|
30
|
35
|
35
|
33
|
33
|
30
|
43
|
32
|
32
|
33
|
52
|
34
|
31
|
21
|
29
|
44
|
51
|
45
|
28
|
28
|
29
|
37
|
|
|
2026/03
|
39
|
28
|
19
|
24
|
43
|
41
|
17
|
21
|
17
|
22
|
43
|
51
|
42
|
36
|
23
|
32
|
31
|
23
|
36
|
25
|
43
|
41
|
34
|
23
|
38
|
32
|
32
|
25
|
36
|
26
|
25
|
|
2026/02
|
22
|
27
|
34
|
50
|
49
|
54
|
60
|
29
|
44
|
29
|
34
|
49
|
46
|
56
|
53
|
73
|
72
|
46
|
24
|
48
|
52
|
64
|
58
|
47
|
54
|
47
|
48
|
46
|
|||
|
2026/01
|
36
|
21
|
23
|
18
|
37
|
35
|
51
|
41
|
90
|
107
|
90
|
88
|
81
|
85
|
88
|
107
|
109
|
84
|
74
|
26
|
21
|
30
|
59
|
58
|
50
|
42
|
68
|
65
|
44
|
35
|
32
|
|
2025/12
|
112
|
107
|
73
|
40
|
43
|
74
|
43
|
79
|
61
|
52
|
79
|
60
|
35
|
66
|
61
|
60
|
43
|
77
|
81
|
45
|
63
|
59
|
39
|
48
|
52
|
81
|
81
|
93
|
66
|
40
|
37
|
|
2025/11
|
19
|
20
|
15
|
25
|
31
|
31
|
27
|
19
|
17
|
18
|
21
|
21
|
19
|
41
|
31
|
48
|
23
|
19
|
25
|
41
|
46
|
60
|
48
|
38
|
51
|
70
|
64
|
75
|
107
|
118
|
|
|
2025/10
|
14
|
21
|
28
|
26
|
27
|
23
|
16
|
15
|
20
|
26
|
29
|
27
|
24
|
32
|
30
|
26
|
19
|
16
|
18
|
16
|
13
|
20
|
25
|
53
|
18
|
18
|
21
|
38
|
29
|
23
|
22
|
|
2025/09
|
24
|
25
|
25
|
33
|
33
|
23
|
39
|
23
|
25
|
32
|
31
|
25
|
22
|
31
|
29
|
23
|
17
|
16
|
20
|
30
|
28
|
18
|
20
|
18
|
23
|
19
|
21
|
23
|
21
|
18
|
|
|
2025/08
|
33
|
33
|
36
|
41
|
36
|
26
|
22
|
27
|
28
|
24
|
14
|
26
|
26
|
31
|
27
|
25
|
22
|
25
|
25
|
24
|
23
|
15
|
16
|
18
|
19
|
17
|
18
|
22
|
21
|
17
|
20
|
|
2025/07
|
21
|
14
|
18
|
16
|
19
|
23
|
25
|
27
|
19
|
17
|
19
|
21
|
34
|
32
|
29
|
31
|
35
|
31
|
24
|
19
|
14
|
12
|
11
|
13
|
18
|
20
|
22
|
33
|
36
|
32
|
30
|
|
2025/06
|
18
|
14
|
25
|
29
|
37
|
51
|
46
|
32
|
38
|
31
|
35
|
42
|
45
|
40
|
26
|
30
|
32
|
21
|
15
|
24
|
23
|
22
|
31
|
27
|
16
|
14
|
22
|
25
|
25
|
19
|
|
|
2025/05
|
49
|
46
|
52
|
46
|
37
|
25
|
34
|
25
|
38
|
29
|
33
|
41
|
52
|
35
|
52
|
46
|
40
|
41
|
37
|
40
|
41
|
41
|
51
|
48
|
35
|
32
|
21
|
15
|
26
|
25
|
22
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
Air quality source: CNEMC
*: primary pollution